On Tue, 12 Sep 2006 16:00:24 GMT, "Peter O. Brackett"
wrote:

In fact, in the near field of an antenna, there is nothing that
resembles 377 Ohms of Z.
[snip]

Correct, but don't we all believe that the wave impedance of "free space" is
approximately 377 Ohms...

Hi Peter,

Beliefs. -sigh- Is this one of those transcendental statements about
navel gazing?

Everywhere...

Even in the near field of an antenna.

No. Not even in the near field of an antenna.

That is an antenna itself has no effect on the fundamental u and e of the
media in which it is immersed.

Wrong.

After all the antenna is very small, and free space is very large (grin),
and so a tiny antenna cannot change u and e everywhere!

Abstracting from near space to everywhere is the source of your error.

The fields E and H in the "near region" of an antenna where the waves are
not "plane" on the other hand may not be related by 377 Ohms, simply because
the waves emanating from the "near" antenna are not plane, but...

The waves are not plane where the waves are not plane, but... Is this
a Zen "but?"

There might just also be plane waves passing through identically the same
region of space, say emanating from a more distant antenna.

Wrong.

The ratio for
those plane E and H fields will indeed be 377 Ohms over the exact same
region of space where Zo is different because of simultaneous but non-planar
waves.

Wrong.

So in fact... the wave impedance of free space can have many values
simultaneously, one [universal?] constant value of ~377 Ohms for plane
waves, while it may have many other [arbitrary] values for waves passing
through the same region of space that are not plane.

Thoughts, comments?

Wrong.

Peter, are you trying to bust loose a seized bearing? Most of this
reads like the Molly Bloom citation from a technical translation of
"Ulysses."

73's
Richard Clark, KB7QHC